Bug #81601 Optimizer does not identify index as covering on myisam table
Submitted: 26 May 2016 6:55 Modified: 8 Jun 2016 13:30
Reporter: Jiří Kavalík Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S3 (Non-critical)
Version:5.6.21 OS:Any
Assigned to: CPU Architecture:Any
Tags: covering index, myisam

File: Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file: